40302010000:00000-1.0000000-0.753.A statistics student seeking part-time employment as a New York Citycab driver is trying to decide between driving a yellow cab or a greencab and examines tip amounts to help in making the decision. Usingdata from the New York City Taxi & Limousine Commission (http://www.nyc.gov/html/tlc/html/about/trip_record_data.shtml), the stu-dent examines tip amounts from 25 randomly selected green cab faresand tip amounts from 25 randomly selected yellow cab fares. Graphsand summary statistics of the sample data from green cabs (G) andyellow cabs (Y) are shown.Green Cabooooooooo000Yellow Caboooooooooooo우1-0.5088.8.COCO2-3-0.2545Amount of Trip0.gonull = 0Source:http://www.nyc.gov/html/tlc/html/about/trip_record_data.shtmlBecause each sample includes outliers, a two-sample t-test forH₁a difference in means is not appropriate to test the hypotheses:Ho: MGMy = 0, Ha:MG My # 0. The student simulates a distri-µybution of differences in sample means under the assumption that thenull hypothesis (no difference in the mean tip amounts for green andyellow cabs) is true. The distribution of XG - Xy is simulated 1000times and the results are displayed below.-OT60.2570.508XG= $1.26Xy=$1.170.75SG=$1.73Sy=$1.421.001.25 Based on the results of the simulation, what can the student concludeabout the difference in mean tip amount for green cab fares andyellow cab fares in New York City?(A) Because a difference in means greater than or equal to $0.09 orless than or equal to - $0.09 occurs so frequently, there is notenough evidence to say that there is a difference in mean tipamounts for the two cab colors.(B) Because tip amounts of $1.26 and $1.17 rarely occur on the simu-lated null distribution, reject the null hypothesis and conclude thatthere is a difference in mean tip amounts for the two cab colors.(C) Because the distributions of tip amounts for the two colorscontain outliers, no decision is possible.(D) Because the simulated null distribution has a mean of 0,conclude that there is no difference in mean tip amounts for thetwo cab colors.(E)) Because a simulated difference in means of $0.09 does not occurvery frequently, there is sufficient evidence to conclude that thereis a difference in mean tip amounts for the two cab colors.

From the given information, The appropriate hypothesis is, H0:μG-μY=0Ha:μG-μY≠0 The distribution of…

Answered: A statistics student seeking part-time…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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